Your teammate is spinning a tennis ball on a string in a perfect circle. if the radius of the circle is 45 cm and the ball travels half the circumference of the circle in 1.5 seconds, what is the velocity of the ball rounded to the nearest whole number?

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?